【更新 2】筆者前面的情況，等候幾天後，重新登入 Fi app，就自動好了。所以之前 Reddit 上的建議是對的，B003 就是 Google 裝置跟 Sim 卡之間沒有對接好，你只需要等兩天就可以重新啟用了。

【更新】Google 活動的手機都是自帶 Sim 和 Fi app 的，B003 錯誤其中一部分原因是裡面的 app 版本太低，更新一下就解決了。更新了 app 仍然解決不了，就換卡，或者等幾天。

前幾天 Google Fi 出了一個不錯的擼手機活動，雖然不是完全免費，不過抵用等值的 Fi Credit 也是很不錯的，參考：

Google Fi 的 Sim 卡在啟用過程中會出現多種錯誤，主要都是以 B 開頭，例如 B046（在美國境外啟用時會出現，這個也很好解決，後續再介紹）。購機活動的裝置啟用則會出現 B003 錯誤，本文主要講 B003。

B003 錯誤

筆者擼了 Moto 的爛手機，發貨很快，第二天就收到手機了。這個購機活動中，Fi-Sim 是直接幫你裝好在手機裡面的。然後啟用的時候並不是很順利，筆者遇到了 B003 這個古老的錯誤。

根據錯誤畫面的提示，猜測主要原因是啟用速度過快？個人建議你收到手機後，先放幾天（去去病毒）再慢慢啟用。

這個錯誤在很久以前，主要出現在 Google Project Fi 購機活動中，購買 Google 自家的 Pixel 手機時，啟用 Sim 卡會出現，而且現在 Pixel 5 機型也還存在。參考客服給我的回覆：

解決方法

Reddit 上關於這個錯誤已有不少討論，Reddit 讀者提供的方法其實很有效，也很簡單：

  • 更新 app，再試一次，不行就等幾天
  • 等幾天，再試一次，不行就考慮換卡
  • 使用新的 Sim 卡來啟用

可以自己重新 order Sim 卡（免費），或在 BBY/AMZ 上購買 $10 預充卡；又或者找客服申請寄送新的 Sim，一般會加急，隔日送達。

官方給出的解決方法

Google 官方給出的解決方法挺有意思，前幾條都是套話，第五、六點比較新，可以參考一下。

Step 1:  Check for app updates【可破】

Check for Hangouts, Messenger, and Google Fi app updates
Go to Play Store app > My apps > Select the app (Hangouts, Messenger, Google Fi)
If it says “Update,” tap the button to update the app. If it says “Open,” then the app is already updated to the latest version

Step 2: Check for system updates

Go to Settings > About phone > System updates > Check for update. If there is any update available, please make sure you update the software

Step 3: Check Data usage and Permission settings

Data usage shouldn't be restricted for the following apps:

  • Google Fi
  • Google Play Services
  • Carrier Services
  • Hangouts
  • Android Messages
  • Dialer

Tap the back arrow from the top to return to the App info. Tap Data usage. The wording will differ depending on the OS.

  • If you see "Background data", the switch should be ON.
  • If you see "Unrestricted data usage", the switch should be ON.
  • If you see "Restrict background data", the switch should be OFF.
  • Return to the Apps & Notifications page and repeat this process for the rest of the relevant apps listed above.

Step 4:  Restart device in safe mode

Running your device in safe mode turns off all third-party apps, and is a great way to figure out if any device issues are being caused by third-party apps. Also, rebooting a device will sometimes prompt software updates, or even fix an issue entirely. This will give us an opportunity to try that, as well.

  • Press and hold your phone's power button.
  • On your screen, touch and hold Power off . Tap OK.
  • Your phone starts in safe mode. You'll see "Safe mode" at the bottom of your screen. Please find the complete information about "safe mode" in the link. I request you to use the device in safe mode for some time and check.

Step 5: Dialer Codes

  • Dial *#*#FIINFO#*#* (same as *#*#344636#*#*) - Shows the current network information.
  • Dial *#*#FISPR#*#* (same as *#*#34777#*#*) - Switches to Sprint.
  • Dial *#*#FIUSC#*#* (same as *#*#34872#*#*) - Switches to US Cellular.
  • Dial *#*#FITMO#*#* (same as *#*#34866#*#* ) - Switches to T-Mobile

Step 6: Fix network issues

Dial *#*#FIXME#*#* Same as *#*#34963#*#* and check if the issue gets resolved.

If the issue still persists please help us with the below information so that we can escalate the issue to the specialist.

  • Where does the issue happen? (Be as specific as possible, i.e. address or cross streets)
  • What partner network is the phone connected to at this location when you dial the code *#*#344636#*#* .
  • How many signal bars are on your phone at this location?
  • What network icon is next to the signal bars?
  • How many signal bars are on your phone at this location after switching?
  • What network icon is next to the signal bars?